/*
 * Copyright 2012-2024 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.pulsar.core;

/**
 * Strategy interface for resolving a value from a string expression.
 *
 * @author Jonas Geiregat
 * @since 1.1.0
 */
public interface ExpressionResolver {

	/**
	 * Resolve the given expression as a string value.
	 * @param expression the expression to resolve
	 * @return a {@code Resolved} instance containing the resolved string value (can be
	 * null) or an exception if the resolution failed.
	 */
	Resolved<String> resolveToString(String expression);

}
